/**
 * MIT License
 * 
 * Copyright (c) 2024 - present @ ebraid
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include "heap/tlsf.h"
#include <stdint.h>
#include <mm/mem.h>
#include <kernel/syslog.h>
#include <ebraid.h>
#include <config.h>


#define RD_MEM_TOTAL_SIZE   (CONFIG_HEAP_POOL_SIZE * 1024)

static char mem_pool[RD_MEM_TOTAL_SIZE];


/**
 * @brief  memory initializatin 
 * 
 * @param  none
 * 
 * @return none
*/
void kmem_init(void)
{
    tlsf_create_with_pool(mem_pool, RD_MEM_TOTAL_SIZE);
}


/**
 * @brief  memory alloc, the function is unsafe, you should ensure that 
 *         the requested size is smaller than the free size of memory
 * 
 * @param  size   request size of memory
 * 
 * @return point to request memory address
*/
void* kmalloc(size_t size)
{
    void *ret = tlsf_malloc(mem_pool, size);
    if(ret == NULL) {
        SYSLOG_ERROR("out of memory");
        return NULL;
    }

    return ret;
}


/**
 * @brief  memory free
 * 
 * @param  p  the pointer of request size of memory
 * 
 * @return none
*/
void kfree(void *p)
{
    tlsf_free(mem_pool, p);
}
